File used by osu!, a rhythm game where players click visual cues in sync with music; contains a compressed beatmap, which includes a song, graphics, and timings and locations of clicks; enables players to save and share custom beatmaps.
OSZ files may be played by double-clicking them in Windows or by dragging them into the osu! game window.
File created by OpenLP, a free application used for creating worship service multimedia presentations; can include song lyrics, audio and video data, PowerPoint presentations, and other multimedia data; used with a video projector, which displays the content on a screen.
NOTE: OpenLP is short for "Open Source Lyrics Projection."